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Aiwa Z-HT540 Service Manual

Compact disc stereo system
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SERVICE MANUAL
COMPACT DISC STEREO
SYSTEM
SYSTEM
Z–HT540
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
Z-HT540 (K), (S/M Code No. 09-014-446-7T1).
• If requiring information about the CD mechanism, see Service Manual of
BZG-5, (S/M Code No. 09-00C-353-3N2).
Z-HT540
BASIC TAPE MECHANISM : ZZM-3 PR1NM
BASIC CD MECHANISM : BZG-5 ZD3N1M
CD
CASSEIVER
CX–ZHT540
S/M Code No. 09-016-446-7R1
SPEAKER
CONTROLLER
SX–ZL520
RC–ZAS10
SX–CR677
K
REMOTE

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Summary of Contents for Aiwa Z-HT540

  • Page 1 RC–ZAS10 SX–CR677 • This Service Manual is the "Revision Publishing" and replaces "Simple Manual" Z-HT540 (K), (S/M Code No. 09-014-446-7T1). • If requiring information about the CD mechanism, see Service Manual of BZG-5, (S/M Code No. 09-00C-353-3N2). S/M Code No. 09-016-446-7R1...

  • Page 2: Specifications

    SPECIFICATIONS <FM tuner section> <Cassette deck section> Tuning range 87.5 MHz to 108 MHz Track format 4 tracks, 2 channels stereo Usable sensitivity (IHF) 13.2 dBf Frequency response 50 Hz – 1000 Hz Antenna terminals 75 ohms (unbalanced) Recording system AC bias Heads Deck 1 : Playback head x 1...

  • Page 3: Protection Of Eyes From Laser Beam During Servicing

    PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully CAUTION the instructions below when servicing. Use of controls or adjustments or performance of proce- dures other than those specified herin may result in WARNING!! hazardous radiation exposure.

  • Page 4: Note On Before Starting Repair

    NOTE ON BEFORE STARTING REPAIR 1. Forced discharge of electrolytic capacitor of power supply block When repair is going to be attempted in the set that uses relay circuit in the power supply block, electric potential is kept charged across the electrolytic capacitors (C101, 102) even though AC power cord is removed.
  • Page 5 In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not. 2-2. Regarding reset There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC power cord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed.

  • Page 6: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-012-368-080 C-CAP,S 0.1-50 Z F 87-012-368-080 C-CAP,S 0.1-50 Z F 8B-MAS-651-010 C-IC,LC876572V-5W13 87-012-368-080 C-CAP,S 0.1-50 Z F 87-A21-577-040 C-IC,M61506FP 87-A12-780-090 CAP,E 4700-35 M 85 SKR 87-A21-831-010 IC,SPS-442-1-F1 87-A12-780-090...
  • Page 7 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C305 87-012-271-080 C-CAP,U 560P-50 K B C657 87-016-460-080 C-CAP,S 0.22-16 K B C306 87-012-271-080 C-CAP,U 560P-50 K B C658 87-016-460-080 C-CAP,S 0.22-16 K B C307 87-010-759-080 C-CAP,U 0.1-25 Z F C659 87-A12-090-080 CAP,E 4.7-50 SMG...
  • Page 8 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C853 87-012-286-080 C-CAP,U 0.01-25 K B L301 87-A50-625-010 COIL,TRAP 85KHZ (SANWA) C858 87-010-831-080 C-CAP,U 0.1-16 Z F L302 87-A50-625-010 COIL,TRAP 85KHZ (SANWA) C859 87-010-831-080 C-CAP,U 0.1-16 Z F L351 87-007-342-010 COIL,OSC 85KHZ BIAS...
  • Page 9 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C311 87-010-405-040 CAP,E 10-50 S843 87-A90-095-080 SW,TACT EVQ11G04M C411 87-012-157-080 C-CAP,S 330P-50 CH S845 87-A90-095-080 SW,TACT EVQ11G04M C412 87-010-405-040 CAP,E 10-50 S846 87-A90-095-080 SW,TACT EVQ11G04M C421 87-012-274-080 C-CAP,U 1000P-50 K B S849 87-A90-095-080 SW,TACT EVQ11G04M...

  • Page 10: Chip Resistor Part Code

    REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C413 87-010-190-080 C-CAP,S 0.01-50 Z F C2012 PT C.B C414 87-010-190-080 C-CAP,S 0.01-50 Z F C2012 C421 87-016-087-080 C-CAP,S 0.47-16 FZ CN101 87-A61-110-010 CONN,9P V TID-A C422 87-016-087-080 C-CAP,S 0.47-16 FZ 87-035-458-010 FUSE,4A 250V T218...

  • Page 11: Transistor Illustration

    TRANSISTOR ILLUSTRATION E C B E C B B C E G D S 2SA1980G 2SK2937 KTA1266GR 2SB1342 2SA1981Y KTC3198GR 2SB1344 STC250 CC5551 2SB1370E CDA1585BC 2SD1933 CSC4115BC 2SD2025 2SA1235F KRA102S 2SK360E 2SK2158 2SC2714O KRA107S 2SC3052F RT1P 141C CSD1306E RT1P 441C DTA114EKA SBT5401F DTA123EKA...
  • Page 12 WIRING – 1 (MAIN / DSP) – 12 –...
  • Page 13 SCHEMATIC DIAGRAM – 1 (MAIN 1 / 4 : FUNC SECTION / DSP) – 13 –...
  • Page 14 SCHEMATIC DIAGRAM – 2 (MAIN 2 / 4 : DECK SECTION) – 14 –...
  • Page 15 SCHEMATIC DIAGRAM – 3 (MAIN 3 / 4 : TUNER SECTION) – 15 –...
  • Page 16 SCHEMATIC DIAGRAM – 4 (MAIN 4 / 4 : AMP SECTION) – 16 –...
  • Page 17 WIRING – 2 (FRONT) – 17 –...
  • Page 18 SCHEMATIC DIAGRAM – 5 (FRONT / DECK) – 18 –...
  • Page 19 WIRING – 3 (KEY CD / 3CH AMP / DET / JACK) – 19 –...
  • Page 20 SCHEMATIC DIAGRAM – 6 (KEY CD) – 20 –...
  • Page 21 SCHEMATIC DIAGRAM – 7 (3CH AMP / DET / JACK) – 21 –...
  • Page 22 WIRING – 4 (PT) – 22 –...
  • Page 23 SCHEMATIC DIAGRAM – 8 (PT) – 23 –...
  • Page 24 WIRING – 5 (DECK) TO FRONT C.B CN104 I DECK C.B (FFC104) 11 9 7 5 3 1 6 4 2 (CAM2) (CAM1) (REA) (CST2) (CST1) SOL2 SOL1 SFR1 TAPE MOTOR – 24 –...
  • Page 25 IC DESCRIPTION IC, LC876572V-5W13 Description Pin No. Pin Name M-CLK Common serial clock. M-DATA Common serial data. TU-ON Tuner supply control. H: ON. O-PLL-CE Tuner PLL IC chip enable. DPRO Dolby prologic LED. L: ON. HP-MUTE Headphone mute. L: ON. O-POWER Audio power ON/OFF.
  • Page 26 Description Pin No. Pin Name P24/ECO FL segment P24 output/ECO setting switching input. H: ECO mode off (not used). 60 ~ 63 P23 ~ P20 FL segment P23 ~ P20 output. P19/CST2 FL segment P19 output/Deck 2 cassette detection. L: YES. FL segment P18 output.
  • Page 27 IC BLOCK DIAGRAM – 27 –...
  • Page 28 – 28 –...
  • Page 29 FL (BJ823GNK) GRID ASSIGNMENT & PIN CONNECTION & ANODE CONNECTION GRID ASSIGNMENT PIN CONNECTION ANODE CONNECTION – 29 –...
  • Page 30 ADJUSTMENT < TUNER / DECK / FRONT > < TUNER SECTION > 1. Clock Frequency Check 9. DC Balance / Mono Distortion Adjustment Settings : • Test point : TP7 (CLK) Settings : • Test point : TP5, TP6 (DC) Method : Set to MW 1602 kHz and check that the test point is •...
  • Page 31 < DECK SECTION > 12. Tape Speed Adjustment (DECK 2) 17. REC/PB Sensitivity Check (DECK 2) Settings : • Test tape : TTA–100 Settings : • Test tape : TTA–602 • Test point : TP3 (Lch), TP1 (Rch) • Test point : TP3 (Lch), TP1 (Rch) •...

  • Page 32: Cd Test Mode

    CD TEST MODE 1. How to Activate CD Test Mode While pressing and holding the function button, insert the AC plug. When the test mode starts, the message, “TEST” appears on the display. 2. How to Cancel CD Test Mode Press the POWER button or remove the AC plug.
  • Page 33 MECHANICAL EXPLODED VIEW 1 / 1 – 33 –...

  • Page 34: Mechanical Parts List

    6 8B-MAS-050-010 WINDOW,DISP RDS S 36 8B-MA6-207-010 HLDR,TR A6 7 87-NF4-216-010 HLDR,LOCK 1 37 8B-MA3-047-010 PANEL,SIDE L (U) 8 87-B00-002-010 BADGE,AIWA 30 ABS SIL 38 8B-MA3-215-010 HLDR,PWB PT (HH) 9 87-NF8-220-010 DMPR,150 39 88-MA1-208-210 JOINT,CABI 10 86-NF9-224-010 SPR-C,LOCK 40 87-064-185-010 HLDR,WIRE PVC 0.5...
  • Page 35 TAPE MECHANISM EXPLODED VIEW 1 / 1 TERMINAL, TERMINAL,LB1 IC, EW732 IC, EW732 – 35 –...

  • Page 36: Tape Mechanism Parts List

    TAPE MECHANISM PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 8Z-ZM3-227-010 BELT,MAIN M3 8Z-ZM3-233-010 SPR-T,BRG M3 8Z-ZM3-235-010 BELT,MAIN L 84-ZM2-227-310 SPR-C,AZIMUTH 8Z-ZM1-235-010 PULLEY,MOT 87-A90-403-110 HEAD,RPH MS15R 87-045-347-010 MOT,SHU2L 70 87-A90-404-010 HEAD,EH LE15B 8Z-ZM1-232-010 GEAR,IDL FF/REW 8Z-ZM3-239-010...

  • Page 37: General Speaker Disassembly Instructions (For Reference)

    GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) Type.1 Type.4 TOOLS Insert a flat-bladed screwdriver into the position indicated by the arrows and remove the panel. Remove the screws of each speaker 1 Plastic head hammer unit and then remove the speaker units. 2 (() flat head screwdriver 3 Cut chisel How to Remove the PANEL, FR...

  • Page 38: Accessories / Package List

    SPEAKER PARTS LIST (SX-ZL520 <YSC>) REF. NO. PART NO. KANRI DESCRIPTION 1 8B-MSF-001-010 PANEL,DUCT 2 8B-MSG-002-010 GRILLE,FRAME ASSY 3 8B-MSG-612-010 CORD,SPKR 4 8B-MSF-606-010 SPKR,W 160 25/4 5 8B-MSF-604-010 SPKR,TW 60 6 83-MSE-605-010 SPKR,CERAMIC SPEAKER PARTS LIST (SX-CR677 <YST1C>) NOTE: This SX-CR677 Speaker contains SX-C607 (Center Speaker) and SX-R277 (Surround Speakers). REF.
  • Page 39 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 2000075 9630472 921338 Printed in Singapore...

This manual is also suitable for:

Cx-zht540Sx-zl520Sx-cr677

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